William grady



[N0 Model.)-

W. GRADY. SPROGKET WHEEL FOR BICYCLES.

No. 605,819 v Patented June 14,1898.

Wrmess E'S- Invmru R as uonms PETERS co. wnorouruuuwxsumamn. n. cy

v UNITED STATES PATENT OFFICE.

WILLIAM GRADY, or CORTLAND, NEW YoRK, AssieuoR or ONE-HALF TO IRVING B. FAIRCHILD.

'SPROCKET-WH EEL FOR BICYC LES.

SPECIFICATION forming part of Letters Patent No. 605,819, dated June 14, 1898.

Application filed October 16, 1897.

' To all whom it may concern.-

. cause it to run noiseless.

, the sprocket wheel.

Be it known that I, WILLIAM GRADY, a citi- 'zen of the United States, residing at Cortland, in the county of Cortland and State of New York, have invented certain new and useful Improvements in Sprocket-Wheels for Bicycles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to'which it appertains to 1 make and use the same.

My invention relates to certain new and useful improvements in the sprocket-wheels of bicycles and it consists, essentially, in providin'g the peripheral portion or pitch-line of the sprocket-wheeler wheels with a band or strip of felt or other similar material capable of absorbing and retaining a lubricant, the band being suitably perforated or slotted to allow it to be slipped over the teeth or cogs of the wheel, as will be hereinafter more fully described, and particularly set forth in the claims.

The object of the invention is twofold, being to furnish lubricant to the chain and to This. object is attained by means of the device illustrated in the accompanying drawings, in which Figure 1 is a side elevation of thesprocket- Wheels and chain of a bicycle, showing my improvement applied to the larger Wheel; Fig.

2, an enlarged peripheral view of a sprocket- Serial No. 655,395. (No model.)

so, as the pressure of the chain serves to pad the strip down and hold it in its encircling position.

Any suitable lubricant may be applied to the band to lubricate the chain sufliciently to prevent it from rust and undue wear. As the band completely covers the periphery of the wheel, surrounding, as it does each tooth or cog, it will be seen that all noise or rattle of the chain is prevented and its wear to some extent protected. When the band hecomes'worn and no longer fit for use, it can be readily replaced by a new one.

The invention is simple and can be pro duced at a comparatively trifling cost. It requires little or no trouble to place it upon the wheel or to remove and replace it by another.

If desired, the smaller sprocket-wheel may be also provided with a similar band; but it has not been found necessary to a successful operation and practice of my invention.

Having thus fully described my invention,

what I claim as new, and desireltosecure by WILLIAM GRADY.

Witnesses:

JOHN W. SUGGETT, IRVING B. FAIRCHILD. 

